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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoPlainText>Hi,<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>Thank you very much for the clarification. Our intention is to provide VOIP service and hence we need not expose our customized code to end users.<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>Regards,<o:p></o:p></p><p class=MsoPlainText>Shankar<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>---------------------------------------------------------------------<o:p></o:p></p><p class=MsoPlainText>Date: Wed, 11 Mar 2015 10:56:02 +0100<o:p></o:p></p><p class=MsoPlainText>From: "Olle E. Johansson" <oej@edvina.net><o:p></o:p></p><p class=MsoPlainText>To: "Kamailio (SER) - Users Mailing List"<o:p></o:p></p><p class=MsoPlainText> <sr-users@lists.sip-router.org><o:p></o:p></p><p class=MsoPlainText>Subject: Re: [SR-Users] Regd. Kamailio GPL<o:p></o:p></p><p class=MsoPlainText>Message-ID: <DD23FDE1-C5DA-4D98-B20E-DE7173C4902F@edvina.net><o:p></o:p></p><p class=MsoPlainText>Content-Type: text/plain; charset=us-ascii<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>On 11 Mar 2015, at 10:13, Daniel Tryba <d.tryba@pocos.nl> wrote:<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>> On Tuesday 10 March 2015 14:52:22 Shankar wrote:<o:p></o:p></p><p class=MsoPlainText>>> We are exploring kamailio source for use in our VOIP solution. This is the<o:p></o:p></p><p class=MsoPlainText>>> first time we are looking at open source. We have few doubts in using<o:p></o:p></p><p class=MsoPlainText>>> kamailio for providing our VOIP service. Under GPL any customization<o:p></o:p></p><p class=MsoPlainText>>> (customization mainly with respect to interacting with our proprietary<o:p></o:p></p><p class=MsoPlainText>>> applications e.g. Billing server) we do to kamailio also has to be provided<o:p></o:p></p><p class=MsoPlainText>>> to the end user. Our doubt is whether we can procure commercial rights to<o:p></o:p></p><p class=MsoPlainText>>> our customised code?<o:p></o:p></p><p class=MsoPlainText>> <o:p></o:p></p><p class=MsoPlainText>> You should really contact a lawyer specialised in IP to get good advice. But <o:p></o:p></p><p class=MsoPlainText>> gnu.org points out that above assumption isn't always true:<o:p></o:p></p><p class=MsoPlainText>> http://www.gnu.org/licenses/old-licenses/gpl-2.0-faq.html#GPLRequireSourcePostedPublic<o:p></o:p></p><p class=MsoPlainText>> <o:p></o:p></p><p class=MsoPlainText>> "The GPL does not require you to release your modified version. You are free <o:p></o:p></p><p class=MsoPlainText>> to make modifications and use them privately, without ever releasing them. <o:p></o:p></p><p class=MsoPlainText>> This applies to organizations (including companies), too; an organization can <o:p></o:p></p><p class=MsoPlainText>> make a modified version and use it internally without ever releasing it <o:p></o:p></p><p class=MsoPlainText>> outside the organization.<o:p></o:p></p><p class=MsoPlainText>> <o:p></o:p></p><p class=MsoPlainText>> But if you release the modified version to the public in some way, the GPL <o:p></o:p></p><p class=MsoPlainText>> requires you to make the modified source code available to the program's <o:p></o:p></p><p class=MsoPlainText>> users, under the GPL."<o:p></o:p></p><p class=MsoPlainText>> <o:p></o:p></p><p class=MsoPlainText>> So if you don't ship a binary to endusers, you don't have to release source <o:p></o:p></p><p class=MsoPlainText>> (including modifications). It all depends on what you are supplying to your <o:p></o:p></p><p class=MsoPlainText>> endusers (a service or a (complete) software product).<o:p></o:p></p><p class=MsoPlainText>> <o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>There is a big difference between GPLv2 and GPLv3 here.<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>For GPL2, providing services is not seen as distribution of the source, and the<o:p></o:p></p><p class=MsoPlainText>commercial code can stay in the company. For GPLv3 it's different as far as I<o:p></o:p></p><p class=MsoPlainText>understand.<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>Kamailio is GPLv2 and Siremis - the web interface by Asipto - is GPLv3.<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>/O<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>